Does /tg/ use wikis for their campaign settings? I find it's really useful to keep track of information, and my players think it's a pretty handy tool to reference things from past sessions or what have you. I use PBWorks, but I wonder if there any other out there. If not wikis, do you use other mediums to chronicle your games?

Here's my (work-in-progress) wiki, as an example: http://eotra.pbworks.com